345608563973 has 2 divisors, whose sum is σ = 345608563974. Its totient is φ = 345608563972.

The previous prime is 345608563967. The next prime is 345608564017. The reversal of 345608563973 is 379365806543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231338874529 + 114269689444 = 480977^2 + 338038^2 .

It is a cyclic number.

It is not a de Polignac number, because 345608563973 - 2⁴ = 345608563957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345608563933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172804281986 + 172804281987.

It is an arithmetic number, because the mean of its divisors is an integer number (172804281987).

Almost surely, 2^345608563973 is an apocalyptic number.

It is an amenable number.

345608563973 is a deficient number, since it is larger than the sum of its proper divisors (1).

345608563973 is an equidigital number, since it uses as much as digits as its factorization.

345608563973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 59.

The spelling of 345608563973 in words is "three hundred forty-five billion, six hundred eight million, five hundred sixty-three thousand, nine hundred seventy-three".